(Unicode C) Send JSON REST Request, Get JSON Response

Demonstrates sending a RESTful JSON request, and receiving a JSON response. This example will create a bucket in Google Cloud Storage (which involves sending and receiving JSON).

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#include <C_CkAuthGoogleW.h>
#include <C_CkRestW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkAuthGoogleW gAuth;
    HCkRestW rest;
    BOOL bAutoReconnect;
    HCkJsonObjectW jsonReqBody;
    HCkJsonObjectW pObjVersioning;
    const wchar_t *jsonResponseStr;

    // This example will create a bucket in Google Cloud Storage.

    // It requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    gAuth = CkAuthGoogleW_Create();
    // Obtain an access token as shown in one of the following examples:
    // See Get Access Token using a Service Account JSON Key
    // See Get Access Token using a P12 File

    rest = CkRestW_Create();

    // Connect using TLS.
    bAutoReconnect = TRUE;
    success = CkRestW_Connect(rest,L"www.googleapis.com",443,TRUE,bAutoReconnect);

    // Provide the authentication credentials (i.e. the access key)
    success = CkRestW_SetAuthGoogle(rest,gAuth);

    // Build the JSON request body for creating a bucket.
    // The only required property is the "name", but we'll add more
    // to make a better example..
    jsonReqBody = CkJsonObjectW_Create();
    success = CkJsonObjectW_AddStringAt(jsonReqBody,-1,L"name",L"chilkat-bucket-c");
    success = CkJsonObjectW_AddStringAt(jsonReqBody,-1,L"kind",L"storage#bucket");
    success = CkJsonObjectW_AddStringAt(jsonReqBody,-1,L"location",L"US");
    success = CkJsonObjectW_AddObjectAt(jsonReqBody,-1,L"versioning");

    pObjVersioning = CkJsonObjectW_ObjectOf(jsonReqBody,L"versioning");
    success = CkJsonObjectW_AddBoolAt(pObjVersioning,-1,L"enabled",TRUE);
    CkJsonObjectW_Dispose(pObjVersioning);

    // Show the HTTP request body we'll be sending.
    wprintf(L"%s\n",CkJsonObjectW_emit(jsonReqBody));

    // Add the required query parameter.
    // See https://cloud.google.com/storage/docs/json_api/v1/buckets/insert
    success = CkRestW_AddQueryParam(rest,L"project",L"chilkattest-1050");

    // Add the Content-Type HTTP request header.
    success = CkRestW_AddHeader(rest,L"Content-Type",L"application/json; charset=UTF-8");

    jsonResponseStr = CkRestW_fullRequestString(rest,L"POST",L"/storage/v1/b",CkJsonObjectW_emit(jsonReqBody));
    if (CkRestW_getLastMethodSuccess(rest) != TRUE) {
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkAuthGoogleW_Dispose(gAuth);
        CkRestW_Dispose(rest);
        CkJsonObjectW_Dispose(jsonReqBody);
        return;
    }

    // Show the JSON response.  (See below for a sample JSON response.)
    wprintf(L"Json Response: %s\n",jsonResponseStr);

    // {
    //  "kind": "storage#bucket",
    //  "id": "chilkat-bucket-c",
    //  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-bucket-c",
    //  "projectNumber": "999992999999",
    //  "name": "chilkat-bucket-c",
    //  "timeCreated": "2016-04-29T21:08:10.451Z",
    //  "updated": "2016-04-29T21:08:10.451Z",
    //  "metageneration": "1",
    //  "owner": {
    //   "entity": "project-owners-999992999999"
    //  },
    //  "location": "US",
    //  "versioning": {
    //   "enabled": true
    //  },
    //  "storageClass": "STANDARD",
    //  "etag": "CAE="
    // }
    // 


    CkAuthGoogleW_Dispose(gAuth);
    CkRestW_Dispose(rest);
    CkJsonObjectW_Dispose(jsonReqBody);

    }